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NN1

Postcode district

Postcode district covering Northampton, Kingsthorpe Hollow and St James' End, in West Northamptonshire.

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an NN1 postcode. How census figures are added up

Open in map

Radon Affected Area by postcode district

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in NN1 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£206,250
Joint 434th cheapest of 2,235
Worked out by Open Index
Population
35,854
601st most populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
87.4%
UK 87.8%
Ofcom · Jan 2026

How NN1 compares

Each dot is a postcode district. The black line marks the middle one.

NN1Middle
Median sale price19 postcode districts, NN · 2025
Median sale price: every postcode district in NN19 areas from £205,000 to £368,225. The middle area is £270,000. NN1 is £206,250.
£206,2502nd cheapest
Population19 postcode districts, NN · 2021
Population: every postcode district in NN19 areas from 11,804 to 76,925. The middle area is 40,077. NN1 is 35,854.
35,8548th least populated
People in radon Affected Area squares19 postcode districts, NN · 2022
People in radon Affected Area squares: every postcode district in NN19 areas from 59.0% to 100.0%. The middle area is 96.0%. NN1 is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage19 postcode districts, NN · Jan 2026
Gigabit broadband coverage: every postcode district in NN19 areas from 86.5% to 99.3%. The middle area is 95.5%. NN1 is 87.4%.
87.4%2nd lowest

Is NN1 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in NN1 at a rate of 251.0 per 1,000 people.

That compares with 93.2 per 1,000 people across the NN postcode area.

In August 2026 alone, 982 cases of crime and anti-social behaviour were recorded in NN1.

In the 12 months to August 2026, the most common types were violence and sexual offences (3,019), anti-social behaviour (2,147) and other crime (1,617).

A year earlier, the recorded crime rate in NN1 was 245.2 per 1,000 people.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

Deprivation in NN1, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so NN1 has no single figure. Of its 17 neighbourhoods with a rank:
  • Decile 1 (England’s most deprived 10%): 2 neighbourhoods
  • Decile 2: 2 neighbourhoods
  • Decile 3: 4 neighbourhoods
  • Decile 4: 6 neighbourhoods
  • Decile 5: 1 neighbourhood
  • Decile 7: 1 neighbourhood
  • Decile 8: 1 neighbourhood

English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

Neighbourhoods in NN1

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
West Northamptonshire 019A1,705135.1 per 1,0004100.0%
West Northamptonshire 019B1,78668.4 per 1,000899.7%
West Northamptonshire 030A2,201105.8 per 1,000499.6%
West Northamptonshire 030B1,976187.5 per 1,000599.8%
West Northamptonshire 030C1,89597.1 per 1,000497.4%
West Northamptonshire 030D1,82781.6 per 1,000799.9%
West Northamptonshire 031A2,543142.3 per 1,000398.5%
West Northamptonshire 031B1,75589.7 per 1,000499.7%
West Northamptonshire 031C1,882151.4 per 1,0003100.0%
West Northamptonshire 031D2,391211.5 per 1,000399.2%
West Northamptonshire 032B2,273476.0 per 1,000186.1%
West Northamptonshire 032D1,826229.3 per 1,000282.1%
West Northamptonshire 032E1,4981,365.5 per 1,000168.6%
West Northamptonshire 034A2,291315.6 per 1,000396.2%
West Northamptonshire 034B2,177168.7 per 1,000299.9%
West Northamptonshire 034D1,410696.8 per 1,000461.1%
West Northamptonshire 034E2,076359.9 per 1,000456.0%

MPs for NN1

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Middle areas in NN15

Postcode sectors in NN16

Council1

Towns in NN11

Postcode districts next to NN14

Nearest rail stations1

More in the NN postcode area2

NN1 in brief

NN1 is a postcode district covering Northampton, Kingsthorpe Hollow and St James' End, in West Northamptonshire.

About 38,598 people lived in NN1 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £206,250 in 2025 across 386 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 251.0 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in NN1 was £206,250 in 2025.

NN1 had 35,854 usual residents at the census.

About 100% of people in NN1 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In NN1, 87.4% of homes and businesses could get gigabit-capable broadband in January 2026.